Vertical multiple spindle milling machine



HAM-@415 A TROSCH.

Fb. 6, E923.

VERTICAL MULTIPLE SF'XNDLE M: LLING MACHINE.

FILED JULY 21 1919 4 SHEETSSHEET I l HACIT ZZI k: l

Feb. (8, 11923.

VERTICAL MULTIPLE SPINDLE MILLING MACHINE.

F1 LED JULY 21 1919.

4 SHEETS'SHEET 2 Feb. 6, M239 A. TROSCH. VERT cm. MULTIPLE SP 1 NDLE MI LL I NG F LED JULY 21 I 91 9 Patented L sa e, was. ildil ALFRED TROSCH, OF ROCHESTER, NEW YORK, ASSIGNOR TO ARTHUR H. INGLE, GE ROCHESTER, NEVT YORK.

VERTICAL MULTIPLE SPINDLE MILLING MACHINE.

Application filed July 21, 1919. Serial No. 312,414.

To all whom it may concern: other objects and advantages of the inven- Be it known that I, ALFRED Tnosorr, a citition will more fully appear from the followzen of the United States, and resident of mg detailed description, and the distinctive Rochester, county of Monroe, State oi New i'eatures of novelty will be pointed out in the York, have invented an Improvement 1n appended claims.

Vertical Multiple Spindle Milling Machines, Referring to the drawings: 60 of which the following description, in 0011- Fig. l is a front elevation with a portion nection with the accompanying drawings, broken away in section of a machine e1nis a specification, like characters on the draw-- bodylng the invention; 1o ings representing like parts in each or the h1g2 is a central vertical section on line several views. f Fig- 1;

This invention relates to metal working Fig. is a partial plan view with a por machines employing a plurality of rotary tion broken away in section; spindles and more particularly to a vertical Fig. is an enlarged sectional d t il h spindle type of machine adapted to operate mg the handle lock of the change speed simultaneously a plurality of rotary tool lever; 70 heads such as milling or facing tools. One Fig. 5 is a horizontal section on line 55 principal object is to provide an improved F1 l with portions broken away to show type of vertical multiple spindle milling or StllllOWel: working parts; and like machine equipped with a plurality of Fig. 6 is a partial horizontal section on cutters adapted to operate on separate work line 13-43 of Fig. 1. 75 pieces at the same time. A i'urther ii'npor- )1 base housing 1 is provided equipped tant object is to provide a machine oi the with bearings as hereinafter described for type stated with a rotary work tabl having the feed change system. This housing has driving means equipped with a feed change bolted or otherwise secured thereto an upsystem adapted for quickly and asil right column 2, both said housing and col- 80 th m f feed movement thereof. A umn being preferably circular in cross secfurther object is to provide a machine of the tion to provide a mounting and bearings for type stated wherein the work may be put on the rotary table as presently described. [it

and secured to the table or taken oil while the upper end of the column 2 a top housing the table is rotating. A further object is to 3 secured which is equipped with driving 0 provide a machine of the type stated with a eonnections to the spindles. This top hou work table having both horizontal and vermg serves as a mounting for the driving tical work clamping faces so arranged that element which may be, as shown, a variable a work piece clamped to either or" said faces speed electric motor for varying the speed at any point may be brought into operative ot the spindles, having in axial alinenient 90 relation to any one of the tools of the mawith the shaft thereof and driven thereby a chine. A further object is to provide a vertiworm 5 meshing with a worm wheel 6 which cal multiple spindle milling machine wherein is fixed at the upper end of a vertical shaft the milling cutters may be adjusted and set 7 which is journaled to eXtend centrally upvertically at any required point to take in ward through the column 2. The worm 5 95 different dimensions of work. A further and worm wheel 6 are shown as both enclosed object is to provide a machine of the kind in a superposed housing 3 fixed above the stated having an exceptionally simple and top housing 3, this housing 3 being also direct transmission of power with a central equipped with bearings for the worm 5. The

vertical distributing shaft connected to drive shaft 7 has fixed thereon within the hous- 108 the spindles from an upper portion thereof ing 1-3 a spur gear 8 which is in driving relaand having its lower end engaged with the tion with a series of gears 9 engaged therett'eed change system oi the work table. Still with at spaced apart points, the number of:

further objects are to provide a machine of these gears corresponding to the number of the type stated requiring exceptionally small spindles in the machine, these being preifloor space and wherein all the operating erably and as shown three in number. Th mechanism is enclosed and protected and pregears 9 are equipped with elongated huhs sents no exposed parts. The foregoing and 9 extending at each side thereof which are j ournaled in bosses 3 of the housing 8. Slidably keyed in the hubs 9 are the upper shaft extensions 10 of the tool spindles 10. Since all of these spindles are or may be, similar in construction and similarly mounted the description of one thereof will suffice for all. Each spindle 10 is journaled in a sleeve 11 and held to move endwise therewith by a lock nut 12 which is threaded on an upper portion thereof while the lower end of said sleeve is engaged with the tool head enlargement of the spindle as indicated at 13. Each sleeve 11 is fitted to slide vertically in a web frame or bracket 14 extending outward from the column 2, said bracket having detachable retaining strips 14: engaging lateral extensions 11 of the sleeve and a lock shoe :lk being provided at one side as shown. The sleeve 11- has an inwardly extending lug 11 thereof equipped with a stationary nut which is engaged by the upper threaded end of a shaft 15. The shaft 15 is journaled to turn and held from endwise movement in a bearing lug 14:"- formed on the bracket 141- and the lower end of said shaft has fixed thereon a bevel pinion 1G with which meshes a pinionl'? fixed on a horizontal.

shaft 18 j ournaled in the bracket lt and having a hand wheel 19 fixed on a projecting outer end thereof,these hand wheels thus providing means whereby the several tool spindles may be quickly and easily adjusted individually to any vertical height as required for different dimensions of work. The tool spindles 10 are shown as equipped with usual milling heads 20, these typifying any suitable milling or like rotary tool that the machine is adapted to employ.

Rotatably fitted on a finished annular bearing surface 21 of the base housing 1 is a circular work table 22 which is provided at its inner edge with an upwardly extending sleeve portion 22 which is mounted on and fitted to the column 2, being preferably and as shown, equipped with arcuate wear gibs 23 which are tapered as usual and may beadjusted to maintain a close working fit. The table 22 has fixed to the under surface thereof an internal gear ring 2 1 which is engaged by a spur pinion 25 carried at the upper end of a short shaft 26 vertically journaled in the housing 1. The shaft 26 has fixed to a lower portion thereof a worm wheel 27 with which meshes a worm 28 fixed on a shaft 29 horizontally journaled in the housing 1. The shaft 29 ha fixed thereon in spaced apart relation series of spur gears 30, 31. 32. of diverse sizes and of progressively increasing size toward the right as seen in Fig. 2. A. countershaft 3 1 is horizontally journaled in the base housing 1 adjacent to and parallel with the shaft 29. The shaft 3a is driven constantly by a bevel gear connection from the lower end of the vertical shaft T. The shaft 34 has loosely mounted thereon a spur gear 36 meshing with the gear 30 which is the smallest of the gear set 80-33. The gear 36 has a clutch face 36 formed on a side thereof which is adapted to be engaged by a co-operative clutch face 37 formed at the end of a pinion blo'ck 3? which is slidably keyed on the shaft 34:. Thus when the pinion block 37 is slidably adjusted to an extreme left position as seen in Fig. 2, the gear 36 will be clutched with said pinion block and hence driven by the shaft 3% to transmit driving impulse to the gear 30 and thence through the shaft 29 and worm wheel 27 to rotate the table for feed movement. The pinion block 37 is equipped with a series of spaced apart pinion faces 37", 37, 3? of diverse sizes and adapted to be selectively engaged with the gears 31, 3.2, according to the position of sliding adjustment of the pinion block 37, it being noted that when said pinion block is at its extreme left hand position, i. e., clutched with the gear 36, all of the pinion faces 3'?" 37, 37 are disengaged. By thus shifting the pinionblock 37 endwise on the shaft 34- any one of four feed changes is obtainable in the drive from the shaft 7 to the work table according to whether the drive from the shaft 3 to the shaft 29 is through the 36 or through the different ones of the pinion faces 37", 37 37 It is to be noted that with the described arrangement of the change feed system it may be compactly fitted within the base housing underneath the upright column 2 and that the entire structure is thus made compact and with relatively small requirements as to floor space, and further that all the operating gearing con'ipletely encased and protected from injury. The outer end of the shaft 29 preferably has a squared extremity 29 permitting it to be engaged by a hand operating wrench or crank to turn the table manually if desired in which case of course all the feed gears will be disengaged. F or controlling the endwise shifting of the pinion block 3? it is engaged bya shipper arm 38 fixed at the inner end of a rock shaft 39 journaled in the base housing and having on its outer projecting end an operating arm 40 bearing a handle 11 carried on a spring-pressed looking pin 42 which is adapted to engage selective ones of a series of holes in a segment face on the base housing to thus hold the same locked in a given position of adjustment. i. am aware that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. and I therefore desire the present embodiment to be considered in all respects as illustrative and not restrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

lilaving described my invention. what I claim as new and desire to secure by Letters Patent is:

1. A machine of the kind described, comprising a base housing having an upright column extending therefrom, a plurality of vertical tool spindles mounted in spaced apart relation on said column, a rotatable work table mounted on said base encircling said column, and operating means for rotating said spindles connected for rotating said table positively and continuously at a definite rate with respect to the rate of spindle rotation.

2. A machine of the kind described, comprising a base having an upright column extending therefrom, a plurality of vertical tool spindles carried by said column in spaced apart relation, a Work table mounted for rotation on said base encircling said column, and means for rotating said spindles and for rotating said table positively and continuously including change speed devices housed in said base for varying the rotary movement of the table at will.

3. A machine of the kind described, comprising a base housing having an upright column extending therefrom, a plurality of vertical tool spindles carried by said column, an annular work table mounted to encircle said column, and driving means for rotating said table positively and continuously including change speed devices located in said base housing.

4. A machine of the kind described, comprising a base housing having an upright column extending therefrom, a plurality of vertical tool spindles carried by said column, an annular work table mounted to encircle said column, driving means for rotarily feeding said table including change speed devices located in said base housing with a driving shaft engaged therewith extending upward centrally of said column, connections from said shaft to drive said spindles, and prime driving means for said shaft mounted at the top of said column.

5. A machine of the kind described, com prising a base housing having an upright column extending therefrom, an annular work table equipped to have Work pieces secured fixedly thereto mounted on said base with driving connections housed wholly within said base and including devices for imparting variable and selective speeds to the table, and a vertical shaft mounted centrally of said column connected to transmit rotary feed movement to said table through said change speed devices.

6. A machine of the kind described, comprising a base housing having an upri ht column extending therefrom, an annu ar work table rotarily mounted on said hous ing encircling said column, said table equipped with an internal gear, an upright shaft equipped with a pinion engaging said gear, a horizontal shaft in said housing having a worm gear drive to said upright shaft, and a countershaft equipped with change speed elements for driving said horizontal shaft to feed the table at varying selectiverates.

7. A machine of the kind described, comprising a base having an upright column extending therefrom, an annular work table mounted on said base encircling said column, with a sleeve extending upwardly therefrom and having bearing on the column, and a plurality of vertical tool spindles borne by the column equipped with means for rotating the same.

8. A machine of the kind described, comprising a base having an upright column extending therefrom, an annular work table mounted to rotate on said base and having an upright sleeve extension encircling said column and adapted to have work clamped thereto, and tool mechanism carried by said column.

9. A machine of the kind described, comprising a base having an upright cylindrical column extending therefrom, a Work table rotarily mounted on said base comprising an annular horizontal portion and an upright sleeve portion encircling and fitting said column, both said portions adapted to have work clamped thereto, and tool mechanism carried by said column.

10. A machine of the kind described, comprising a base having an upright column extending therefrom, a work table fitted to said base equipped with means to feed the same rotarily, and a plurality of vertical milling tool spindles mounted on said column having means to drive the same simultaneously and each having provision for independent vertical adjustment.

11. A machine of the kind described, comprising a base equipped with a vertical column, a work table rotarily mounted on said base, a plurality of vertical milling tool spindles mounted on said column, each equipped with provision for individual vertical adjustment, a vertical shaft extending centrally of said column equipped with connections at its lower end to feed said table rotarily, said shaft having also gear connections to drive all said spindles simultaneously, and a prime motor mounted at the top of said column with a worm gear drive to said shaft.

In testimony whereof. I have signed my name to this specification.

ALFRED TROSCH. 

